The One Product You Need for Springtime Concrete Repairs

Ken McBride / Mar 6 , 2020

Mastic application on concrete

Meteorologists recognize the first day of spring as March 1. And that means, although it still might be chilly where you live, winter is winding down. While most of us welcome warmer weather, for pavement—and concrete in particular—the change in season may reveal uninviting defects such as cracks and, in more severe cases, areas of broken concrete.

Why does this happen?

Concrete is very strong and durable when mixed and applied properly. However, just like asphalt, unsealed concrete is susceptible to water penetration. When water freezes and expands, it causes stress to the concrete structure. In some cases, the stress results in cracks. However, freeze/thaw cycles can force big slabs of concrete to move, lift, crack, and in some cases, spall and come apart in chunks.

What can you do?

Apply mastic material to repair cracked or broken concrete. This load bearing, hot-applied compound provides long-lasting repairs and years of performance to distressed concrete, utility cuts, slab corner breaks and a variety of other pavement repairs. Mastic material is malleable and, once in place, will move with the concrete. Therefore, cracks that have been filled with mastic will remain sealed. The material can also be applied to spalled areas of concrete, effectively tying together sections that may have moved or shifted.

In addition to its versatility, it’s an excellent economical option for tight budgets versus reconstruction cost and mastic is easy to install and more convenient than traditional methods. Repairs with mastic do not require a large crew or heavy, costly machinery. Application is quick and the material requires less time to set and opened back up to traffic. Plus it comes in a box so you don’t need to go to a concrete plant to get material and you don’t have to mix concrete with water and aggregate. You simply heat it up, pour it in place, level it off, and you’re done! View this short video for more benefits.

Where can you buy mastic material?

Gemseal has gray mastic (for concrete) and black mastic (for asphalt) available at our One Stop Shop retail stores. We also have mastic application equipment for sale or to rent. Our store representatives are happy to answer any questions about the product and the application process. So, don’t delay…stop in today and we’ll help you spring to it!

Detectable Warning Systems for Parking Lots and Public Walkways

Jeff Spencer / May 30 , 2019

Detectable Warning SystemParking lots and public walkways need to be ADA compliant. As a contractor, knowing how to keep the property owner in compliance with ADA requirements and local ordinances makes you an expert resource, multiplying the value of your work. There is a lot to consider in this endeavor, from accessible parking spaces and wheelchair ramps to flush transitions between pedestrian and vehicular areas.

Our line of Detectable Warning Systems is the solution for flush transitions. These warning mats help alert the visually impaired when they are about to leave a pedestrian area and enter an area with vehicular traffic. Easily distinguishable in yellow, red, black, or gray, the truncated domes on each warning mat meet very specific federal guidelines. And, here’s an interesting fact. They were originally called tenji blocks, designed by Seiichi Miyake in 1965. Tenji blocks were first installed in 1967 along a highway near a school for the blind in Japan.

Since then, the Americans with Disabilities Act has developed standards and specifications for the correct usage, positioning, and size of detectable warning systems (click here for more info). Many states have modified the federal installation requirement; therefore, it is important to know the requirements for the state in which you are working. If needed, confer with a certified ADA inspector.

When you have the specifications for your job and are ready to install, contact GemSeal. We supply a complete line of Detectable Warning Mats to contractors, cities, counties, transit authorities, and other governmental agencies. Our solutions work for any retrofit, surface-applied application as well as cast-in-place requirements. For the former, we recommend RediMat™ (a flexible option) or AlertTile® (a semi-rigid design). For cast-in-place, try AlertCast® for superior impact resistance, slip resistance, wear resistance, and long-term durability.

In addition to detectable warning systems, we also supply preformed thermoplastic ADA symbols, stencils, and ADA signs. Please contact your GemSeal representative for more information and pricing.

A Praise-Worthy Result with Black Diamond™ XL

Lee F. Lowis / May 24 , 2017

A printing and literature distribution facility for a worldwide re­ligious group in Georgetown, Ontario, needed a solution for its oxidized and poorly patched-over parking lot. Sure-Seal Pavement, based in Toronto, went on site to evaluate the pavement and devised a plan to properly repair patched areas, crack seal, and sealcoat the 650,000 sq ft parking lot. Completed together, these procedures would prolong pavement lifespan and enhance curb appeal. But, the daunting challenge was to execute the work without disrupt­ing operations.

Black Diamond XL Application
Workers apply two coats of Black Diamond™ XL sealer.

This was no easy task since the facility receives thousands of visitors on a weekly basis for tours of the complex. In addition to the print shop, there are distribution and office buildings, a vehi­cle maintenance center, maintenance shops, a waste management center, and a residence on-site that provides accommodations for over 400 volunteer workers that operate the facility.

Procedures had to be scheduled around deliveries, shipments, and staff shifts, which meant completing work in phases during and after normal work hours as well as on the weekends. Because of the challenges with site access and a desire for an extended maintenance cycle, Sure-Seal had to carefully select and recom­mend the right materials for the job.

For the sealer product, Sure-Seal recommended a two-coat application of GemSeal Black Diamond™ XL and the site’s facility man­agers readily accepted the product because of its extended wear, low odor, low VOCs, and low PAH content.

The result has received high praise. The customer noticed that tire scuff­ing on parking lots and especially in the shipping/receiving areas has been minimal to none. And, as an applicator, Sure-Seal also immediately observed how nicely the product sprayed with hand wands and self-propelled, ride-on applicators. Coverage was even and the deep-black color was immediately appealing to the eye. Ad­ditionally, there was no odor and little to no burn.

Lance Bradshaw, President of Sure-Seal Pavement, fur­ther commented, “After experiencing the benefits of the premium Black Diamond XL, we feel the product is a truly viable alternative to refined-tar based sealers in every market in North America.”

He continued, “The key is to educate your customer and make them aware of alternative products and the long-term benefits. Our customer is extremely happy with the results.”

Pavement Sealer Quality Control – What Does it Mean to You?

Paul Raymond / Nov 9 , 2016

product quality testingWhen it comes to pavement products, there are many choices available on the market. So, how do you differentiate between one manufacturer and another? Certainly price, availability, and mix design are key factors; but, perhaps most important, consider the product quality. Have you ever experienced premature wear or failure of a product in the field? What about poor curing, poor adhesion to the surface, cracking, or abrasion? Oftentimes, these issues result in call-backs or extra work to correct the situation (not to mention further disruption to the site).

GemSeal has a rigorous quality-control process to help reduce those problems from occurring when using our products. This is because every plant has a lab where specific tests are performed on raw materials before production, during manufacturing, and on finished products before delivery to you.

Specification tests for raw materials (to make sure good stuff goes in) include:

  • Solids Content
  • Float Test or Softening Test

Specification tests for sealers (to make sure you get what you pay for) include:

  • Solids Content
  • Ash Content
  • Viscosity

In addition to tests at our plants, the GemSeal R&D lab also conducts tests on every finished product to make sure it performs as you and we expect.

Performance tests for sealers include:

  • Scrub Test
  • Wet Track Abrasion
  • Mandrel Test

GemSeal products are sold only if they pass these tests, along with other strict specifications. Plus, all of our plants keep a log with product information corresponding to each production run. We analyze the data, review weekly statistical reports, and analyze outliers to find possible deviations in production or equipment performance. That’s why GemSeal’s products stand out in a crowded industry as the most consistent.